Acer v5-552 zri

[ronelex]

Repairing An Acer Board ZRI
Problem : When Press power turn on light then off
Culprit : Shorted VDDA_PWRGD line and solved by removing the PU1 and the unit power but no 1.2v
Tried to replace the damaged part but when plugging the charger, amp goes to 3amp shorted board caused of the HI side mosfet shorted, I replaced it and same thing happen to the mosfet

[Elsid79]

Re: Acer v5-552 zri

PU1 damaged

[ronelex]

Re: Acer v5-552 zri

PU1 is Newly replaced, Problem solved but I dont know the real reason. After I replace new mosfet, It is not get short but the problem of the unit came back, When Power On it shut off if this circuit for 1.2v supply is in the circuit